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3 years ago

Find the value of x. PLEASE HELP

Mathematics

1 answer:

gizmo_the_mogwai [7]3 years ago

8 0

Answer:

14*

Step-by-step explanation:

5x+4*=74*

-4 -4

5x=70*

x=14*

*dont mind the asterisks they are my temporary degree signs

hope this helps

brainliest?

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4(x+5) = 4x +5x it's probably easy but i'm dumb

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<span>4(x+5) = 4x +5x

Simplify by distributing and combining like terms
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<span />
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3 years ago

Emily is 4 times as old as Tiffany. In ten years time, Emily will be twice as old as Tiffany . Find their ages.

Sholpan [36]

<h3><u>Question</u><u>:</u></h3>

Emily is 4 times as old as Tiffany. In ten years time, Emily will be twice as old as Tiffany. Find their ages.

<h3><u>Solution</u><u>:</u></h3>

Let the age of Tiffany be x years.
Then, the age of Emily = 4x years.
After 10 years, the age of Tiffany will be (x+10) years.
After 10 years, the age of Emily will be (4x+10) years.
Therefore, by the problem

$4x + 10 = 2(x + 10) \\ = 4x + 10 = 2x + 20 \\ = > 4x - 2x = 20 - 10 \\ = > 2x = 10 \\ = > x = \frac{10}{2} \\ = > x = 5$

So, Tiffany's present age = 5 years.
Emily's present age = (4×5) years = 20 years.

<h3><u>Answer:</u></h3>

Emily's age is 20 years and Tiffany's age is 5 years.

Hope it helps!

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2 years ago

Read 2 more answers